3. Lucas and Emma Mendoza are preparing their 2018 cash budget. Help the Mendozas reconcile the following differences, giving reasons to support your answers.

a. Their only source of income is Lucas salary, which amounts to $5,000 a month before taxes. Emma wants to show the $5,000 as their monthly income, whereas Emma argues that his take-home pay of $3,917 is the correct value to show.

b. Emma wants to make a provision for fun money, an idea that Lucas doesnt understand. He asks, Why do we need fun money when everything is provided for in the budget?